Sixteen cards lie face down, hiding eight matching pairs of symbols. Flip two at a time: a match stays face up, a miss flips back after a second. Find all eight pairs to win. Your move count is the score, and fewer moves means a better best.
Concentration, the card game this is based on, has been played with ordinary playing cards for well over a century, and it works because the scoring is about efficiency rather than speed. With sixteen cards in eight pairs, the theoretical minimum is eight moves: every flip pair is a match. That is only possible with perfect memory and some luck. A realistic good score is in the low teens, and the game saves your best move count rather than your time.
Every miss shows you two cards for a full second. That second is the whole game. A player who uses it to fix both positions in memory will finish in far fewer moves than one who is already reaching for the next card.
Eight moves, one per pair, which needs perfect memory and some luck on the early flips. A score in the low teens is a strong result.
One second. That is your window to memorise both cards and where they are.
Moves. Fewer is better, and your best is saved on this device.
-FAQ